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Cartographic True Size Analysis

Alaska vs Australia: True Size & Area Comparison

Australia is 4.46 times larger than Alaska. Alaska is about 22% the size of Australia. Areas below are total areas from national statistics; the Mercator factor shows how much a standard web map inflates each one.

Geographic Result

Australia is larger by 2,304,523 sq mi (5,968,687 km²).

Launch Interactive Overlay
🇺🇸Alaska (18.3%)
Australia (81.7%)🇦🇺
665,384 sq mi
2,969,907 sq mi

Share of the two areas combined (true area, not map area)

Side-by-Side Demographic & Spatial Data

Metric🇺🇸 Alaska🇦🇺 AustraliaRatio / Difference
Total Area (Sq Miles)665,384 sq mi2,969,907 sq mi0.22x
Total Area (Sq Kilometers)1,723,337 km²7,692,024 km²0.22x
Population733,39126,000,00035.5x less
Population Density1.1 people / sq mi8.8 people / sq miAustralia 7.9x denser
Capital or SeatJuneauCanberra-
Largest Metropolitan AreaAnchorageSydney-
Latitude Center64.0°-25.0°89.0° lat diff
Mercator Area Inflation Factor5.21x1.22x4.27x visual distortion

The Mercator Projection Illusion

Because Alaska sits at 64°N, standard Mercator maps inflate it by over 500%, making Alaska look comparable in size to Australia. In reality, Australia is almost 4.5 times larger than Alaska.

Mercator projection formulas stretch surface area proportionally to sec²(φ) = 1 / cos²(φ), magnifying landmasses drastically near the north and south poles.

Geographic Analysis: Alaska and Australia

While Alaska looks massive on conventional classroom maps, Australia dwarfs it in true physical area. Australia covers 2,969,907 square miles, compared to Alaska's 665,384 square miles. Australia is 4.46 times larger than Alaska.

About Alaska

Alaska has more coastline (6,640 miles) than all other 49 US states combined.

About Australia

Australia is both the world's smallest continent and the world's sixth-largest country by total area.

Alaska vs Australia by the Numbers

  • Area: Australia covers 7,692,024 km² (2,969,907 sq mi), which is about 4.46 times the 1,723,337 km² of Alaska, a difference of 5,968,687 km² (2,304,523 sq mi).
  • Population: Australia has 35.5 times as many people (26,000,000 vs 733,391). That works out to about 1.1 people per sq mi in Alaska and 8.8 in Australia.
  • On a Web Mercator map: Alaska (centered near 64.0°) is drawn about 5.21× its true area and Australia (near -25.0°) about 1.22×. So on Google-style maps Australia appears roughly 1.05 times the size of Alaska, versus 4.46 times in reality.

Mercator factors use the center latitude only (area scale = 1 / cos² of latitude), so they are approximations for places that span many degrees of latitude.

How to Accurately Compare Geographic Sizes

STEP 01

Consult Geodesic Area

Use published areas from national statistics offices or census gazetteers rather than judging by pixels on a flat web map.

STEP 02

Account for Latitude

Remember that Web Mercator tiles distort areas by 1/cos²(latitude). High-latitude regions appear vastly larger than equatorial states.

STEP 03

Interactive Map Overlay

Drag one outline over the other in the true size tool; the shape is re-projected as it moves, so it keeps its real size.

Frequently Asked Questions

Is Alaska bigger than Australia?▼

No. Australia is almost 4.5 times larger than Alaska. The apparent similarity on flat maps is an artifact of the Mercator projection.

Which has more people, Alaska or Australia?▼

Australia has about 26,000,000 people versus 733,391 in Alaska, roughly 35.5 times as many. Per square mile, that is about 1.1 people in Alaska and 8.8 in Australia.

How many times does Alaska fit into Australia?▼

By area, Alaska (1,723,337 km²) fits into Australia (7,692,024 km²) about 4.46 times. Shapes differ, so this is an area ratio, not a literal tiling.

Explore Alaska and Australia Further

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